Parker is the Chief Engineer. He is a big, strong, no nonsense kind of man, and likes his own space, he is territorial in nature. He has a good sense of humour, but if you push him too much he is liable to explode with rage. However, it could be argued that much of his bravado may mask a far softer nature. He is good friends with Brett, but is not so keen on Ripley, who he tries to bully verbally. He does care about his colleagues, and in the heat of the moment he is capable of reckless, almost suicidal courage. Like Brett he is interested in making more money, and believes he should be given an equal share. He feels under valued for his work. Parker is ferociously determined to destroy the Alien, even if he has to use his own physical strength to do so.